<!DOCTYPE html>
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<head>
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    <title>Document</title>
    <style>
        .tab-box {
            margin: 20px;
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</head>
<div class="tab-box">
    <div>defew中文</div>
    <button onclick="conf()">点击输入</button>
</div>
<script type="text/javascript">
   function conf(){
       alert("输入用户吗")
   }
</script>
<body>


</body>

</html>